<?php

namespace app\common\library;

class TencentIm
{
    private $sdkappid;
    private $key;
    private $expire;

    public function __construct()
    {
        $this->sdkappid = config('tencent_im.sdkappid');
        $this->key = config('tencent_im.key');
        $this->expire = 86400 * 180; // 签名有效期：180天
    }

    public function generateUserSig($userId, $nickname = '', $avatar = '')
    {
        try {
            // 生成 UserSig
            $TLSSig = new \TLSSigAPIv2($this->sdkappid, $this->key);
            $sig = $TLSSig->genUserSig((string)$userId, $this->expire);

            // 导入账号到腾讯IM
            $result = $this->accountImport($userId, $nickname, $avatar);
            
            if (!$result) {
                return false;
            }

            return [
                'userid' => (string)$userId,
                'user_sig' => $sig
            ];
        } catch (\Exception $e) {
            return false;
        }
    }

    private function accountImport($userId, $nickname, $avatar)
    {
        // 实现腾讯IM账号导入的具体逻辑
        // 这里需要调用腾讯IM的REST API
        // 返回true表示成功，false表示失败
        return true;
    }
}